Finding the Fourth Proportional to 2,039.47, 3,058.17 and 1,207.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.47 : 3,058.17 = 1,207.38 : x
2. Step 2: Convert to fraction form
   2,039.47/3,058.17 = 1,207.38/x
3. Step 3: Cross multiply
   2,039.47x = 3,058.17 × 1,207.38
4. Step 4: Simplify right side
   2,039.47x = 3,692,373.29
5. Step 5: Solve for x
   x = 3,692,373.29/2,039.47
6. Step 6: Final answer
   x = 1,810.46